[tn] english tn, support date

tn/english/data/date/day.tsv

@@ -0,0 +1,31 @@
+one
+two
+three
+four
+five
+six
+seven
+eight
+nine
+ten
+eleven
+twelve
+thirteen
+fourteen
+fifteen
+sixteen
+seventeen
+eighteen
+nineteen
+twenty
+twenty one
+twenty two
+twenty three
+twenty four
+twenty five
+twenty six
+twenty seven
+twenty eight
+twenty nine
+thirty
+thirty one

tn/english/data/date/month_abbr.tsv

@@ -0,0 +1,12 @@
+jan	january
+feb	february
+mar	march
+apr	april
+jun	june
+jul	july
+aug	august
+sep	september
+sept	september
+oct	october
+nov	november
+dec	december

tn/english/data/date/month_name.tsv

@@ -0,0 +1,12 @@
+january
+february
+march
+april
+may
+june
+july
+august
+september
+october
+november
+december

tn/english/data/date/month_number.tsv

@@ -0,0 +1,24 @@
+1	january
+2	february
+3	march
+4	april
+5	may
+6	june
+7	july
+8	august
+9	september
+10	october
+11	november
+12	december
+01	january
+02	february
+03	march
+04	april
+05	may
+06	june
+07	july
+08	august
+09	september
+10	october
+11	november
+12	december

tn/english/data/date/year_suffix.tsv

@@ -0,0 +1,16 @@
+A. D	AD
+A.D	AD
+a. d	AD
+a.d	AD
+a. d.	AD
+a.d.	AD
+B. C	BC
+B.C	BC
+b. c	BC
+b.c	BC
+A. D.	AD
+A.D.	AD
+B. C.	BC
+B.C.	BC
+b. c.	BC
+b.c.	BC

tn/english/data/number/fraction.tsv

@@ -0,0 +1,18 @@
+¼	1/4
+½	1/2
+¾	3/4
+⅐	1/7
+⅑	1/9
+⅒	1/10
+⅓	1/3
+⅔	2/3
+⅕	1/5
+⅖	2/5
+⅗	3/5
+⅘	4/5
+⅙	1/6
+⅚	5/6
+⅛	1/8
+⅜	3/8
+⅝	5/8
+⅞	7/8

tn/english/data/number/hundred.tsv

@@ -0,0 +1 @@
+hundred

tn/english/data/number/quantity_abbr.tsv

@@ -0,0 +1,10 @@
+M	million
+MLN	million
+m	million
+mln	million
+B	billion
+b	billion
+BN	billion
+bn	billion
+K	thousand
+k	thousand

tn/english/data/number/teen.tsv

@@ -0,0 +1,10 @@
+ten	10
+eleven	11
+twelve	12
+thirteen	13
+fourteen	14
+fifteen	15
+sixteen	16
+seventeen	17
+eighteen	18
+nineteen	19

tn/english/data/number/thousand.tsv

@@ -0,0 +1,22 @@
+thousand
+million
+billion
+trillion
+quadrillion
+quintillion
+sextillion
+septillion
+octillion
+nonillion
+decillion
+undecillion
+duodecillion
+tredecillion
+quattuordecillion
+quindecillion
+sexdecillion
+septendecillion
+octodecillion
+novemdecillion
+vigintillion
+centillion

tn/english/data/number/ty.tsv

@@ -0,0 +1,8 @@
+twenty	2
+thirty	3
+forty	4
+fifty	5
+sixty	6
+seventy	7
+eighty	8
+ninety	9

tn/english/data/ordinal/digit.tsv

@@ -3,7 +3,7 @@ second	two
 third	three
 fourth	four
 fifth	five
-sixth	sixth
+sixth	six
 seventh	seven
 eighth	eight
-ninth	nine
+ninth	nine

tn/english/normalizer.py

@@ -17,6 +17,7 @@
 from tn.english.rules.cardinal import Cardinal
 from tn.english.rules.ordinal import Ordinal
 from tn.english.rules.word import Word
+from tn.english.rules.date import Date
 
 from pynini.lib.pynutil import add_weight, delete
 from importlib_resources import files
@@ -25,22 +26,26 @@
 class Normalizer(Processor):
 
     def __init__(self, cache_dir=None, overwrite_cache=False):
-        super().__init__(name='en_normalizer')
+        super().__init__(name='en_normalizer', ordertype="en_tn")
         if cache_dir is None:
             cache_dir = files("tn")
         self.build_fst('en_tn', cache_dir, overwrite_cache)
 
     def build_tagger(self):
         cardinal = add_weight(Cardinal().tagger, 1.0)
         ordinal = add_weight(Ordinal().tagger, 1.0)
+        date = add_weight(Date().tagger, 0.99)
         word = add_weight(Word().tagger, 100)
-        tagger = (cardinal | ordinal | word).optimize() + self.DELETE_SPACE
+        tagger = (cardinal | ordinal | word
+                  | date).optimize() + self.DELETE_SPACE
         # delete the last space
         self.tagger = tagger.star @ self.build_rule(delete(' '), r='[EOS]')
 
     def build_verbalizer(self):
         cardinal = Cardinal().verbalizer
         ordinal = Ordinal().verbalizer
         word = Word().verbalizer
-        verbalizer = (cardinal | ordinal | word).optimize() + self.INSERT_SPACE
+        date = Date().verbalizer
+        verbalizer = (cardinal | ordinal | word
+                      | date).optimize() + self.INSERT_SPACE
         self.verbalizer = verbalizer.star